Carton production waste gas recovery device

Abstract

The utility model belongs to the technical field of waste gas recovery, and particularly relates to a carton production waste gas recovery device which comprises a recovery tower and a pump body, a gas inlet pipe is arranged on one side of the recovery tower, the liquid inlet end of the pump body is fixedly communicated with a liquid inlet pipe, one end of the liquid inlet pipe is fixedly communicated with the bottom of the recovery tower, and the other end of the liquid inlet pipe is fixedly communicated with the pump body. The liquid outlet end of the pump body is fixedly communicated with a guide pipe, a spraying assembly is arranged at the top of the recovery tower, one end of the guide pipe is communicated with the spraying assembly, a gas washing assembly is arranged in the recovery tower, and one end of the gas inlet pipe is communicated with the bottom of the gas washing assembly. According to the utility model, waste gas generated by manufacturing paperboards is introduced into the gas washing assembly through the gas inlet pipe, and substances such as particulate matters in the waste gas can be adsorbed into a solution in the gas washing assembly, so that dust impurities in the gas are prevented from flowing into a desulfurization reagent to pollute the reagent and influence the subsequent recovery of sulfur elements during spraying desulfurization.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas recovery technology, specifically relating to a waste gas recovery device for cardboard box production. Background Technology

[0002] Cardboard boxes are a widely used packaging material. They are commonly used for transporting and storing various items because they are lightweight, easy to handle, and relatively inexpensive. The main raw material for cardboard boxes is paperboard. The production of paperboard generates waste gas, which contains polluting gases such as sulfur dioxide and particulate matter.

[0003] The sulfur element in sulfur dioxide has recycling value. During recycling, sulfur dioxide is absorbed by spraying a solution that absorbs sulfur dioxide, and then the sulfur element is extracted. However, particulate matter in the exhaust gas will fall into the solution, causing the solution to become polluted and turbid, which will affect the subsequent extraction of sulfur element. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas recovery device for cardboard box production, which prevents dust and impurities in the gas from flowing into the desulfurization reagent and causing contamination during spray desulfurization, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste gas recovery device for cardboard box production, comprising a recovery tower and a pump body. An air inlet pipe is provided on one side of the recovery tower. The liquid inlet end of the pump body is fixedly connected to an inlet pipe, one end of which is fixedly connected to the bottom of the recovery tower. A conduit is fixedly connected to the liquid outlet end of the pump body. A spray assembly is provided at the top of the recovery tower. One end of the conduit is connected to the spray assembly. A gas scrubbing assembly is provided inside the recovery tower. One end of the air inlet pipe is connected to the bottom of the gas scrubbing assembly. A conical cap is fixedly connected inside the recovery tower, and the conical cap is positioned between the spray assembly and the gas scrubbing assembly.

[0006] Furthermore, the recovery tower includes a tower body and a first reduced diameter section. The first reduced diameter section is fixedly connected to the top of the tower body. A straight cylindrical section is fixedly connected to the top of the first reduced diameter section. A second reduced diameter section is fixedly connected to the top of the straight cylindrical section. An air outlet pipe is fixedly connected to the top of the second reduced diameter section.

[0007] Furthermore, a liquid outlet pipe is fixedly connected to the bottom end of the side wall of the tower.

[0008] Furthermore, the spray assembly includes an annular tube fixedly connected inside the straight section, with uniformly distributed nozzles fixedly connected to the bottom end of the annular tube, and one end of the guide tube fixedly connected to the side wall of the annular tube.

[0009] Furthermore, the gas washing assembly includes a liquid storage tank, one end of the air inlet pipe is fixedly connected to the bottom end of the side wall of the liquid storage tank, a partition is fixedly connected to the bottom of the liquid storage tank, the surface of the partition is provided with evenly distributed through holes, and a drain pipe is fixedly connected to the bottom end of the side wall of the liquid storage tank, the drain pipe penetrating the tower body.

[0010] Furthermore, the bottom of the storage tank is fixedly connected to equidistantly distributed support frames, one side of which is fixedly connected to the inner wall of the tower body.

[0011] Furthermore, the sidewall of the conical cap is fixedly connected with equidistant connecting rods, one end of which is fixedly connected to the sidewall of the first reduced diameter section.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the waste gas generated from the manufacture of cardboard is introduced into the interior of the gas washing component through the air inlet pipe, and the particulate matter and other substances in the waste gas will be adsorbed in the solution inside the gas washing component. During spray desulfurization, dust and impurities in the gas are prevented from flowing into the desulfurization reagent and causing contamination of the reagent, which would affect the subsequent recovery of sulfur. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front sectional view of the present invention;

[0015] Figure 3 This is a top view of the present invention.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Recovery tower; 11. Tower body; 12. First diameter reduction section; 13. Straight section; 14. Second diameter reduction section; 15. Gas outlet pipe; 16. Liquid outlet pipe; 2. Gas inlet pipe; 3. Pump body; 31. Liquid inlet pipe; 32. Conduit pipe; 4. Spray assembly; 41. Annular pipe; 42. Spray nozzle; 5. Gas scrubbing assembly; 51. Liquid storage tank; 52. Baffle plate; 53. Through hole; 54. Drain pipe; 55. Support frame; 6. Conical cap; 61. Connecting rod. Detailed Implementation

[0018] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0019] like Figure 1 and 2As shown, a waste gas recovery device for cardboard box production includes a recovery tower 1 and a pump body 3. An air inlet pipe 2 is provided on one side of the recovery tower 1. An inlet pipe 31 is fixedly connected to the liquid inlet end of the pump body 3. One end of the liquid inlet pipe 31 is fixedly connected to the bottom of the recovery tower 1. A conduit 32 is fixedly connected to the liquid outlet end of the pump body 3. A spray assembly 4 is provided at the top of the recovery tower 1. One end of the conduit 32 is connected to the spray assembly 4. A gas scrubbing assembly 5 is provided inside the recovery tower 1. One end of the air inlet pipe 2 is connected to the bottom of the gas scrubbing assembly 5. A conical cap 6 is fixedly connected inside the recovery tower 1. The conical cap 6 is located between the spray assembly 4 and the gas scrubbing assembly 5.

[0020] According to the above structure, during use, the waste gas generated from the manufacture of cardboard is introduced into the interior of the gas scrubbing component 5 through the air inlet pipe 2. The particulate matter and other substances in the waste gas will be adsorbed in the solution inside the gas scrubbing component 5. During spray desulfurization, dust and impurities in the gas are prevented from flowing into the desulfurization reagent and causing contamination of the reagent, which would affect the subsequent recovery of sulfur.

[0021] like Figure 2 As shown, the recovery tower 1 includes a tower body 11 and a first reduced diameter section 12. The first reduced diameter section 12 is fixedly connected to the top of the tower body 11. A straight cylindrical section 13 is fixedly connected to the top of the first reduced diameter section 12. A second reduced diameter section 14 is fixedly connected to the top of the straight cylindrical section 13. An outlet pipe 15 is fixedly connected to the top of the second reduced diameter section 14. A liquid outlet pipe 16 is fixedly connected to the bottom of the side wall of the tower body 11.

[0022] According to the above structure, when in use, the inside of the tower body 11 is filled with a reagent for absorbing sulfur dioxide. When the reagent is saturated with sulfur dioxide, it is discharged through the liquid outlet pipe 16, and then the sulfur element is recovered from the reagent.

[0023] like Figure 2 As shown, the spray assembly 4 includes an annular pipe 41 fixedly connected inside the straight cylinder 13. The bottom end of the annular pipe 41 is fixedly connected to uniformly distributed nozzles 42, and one end of the conduit 32 is fixedly connected to the side wall of the annular pipe 41.

[0024] According to the above structure, when in use, the reagent inside the tower body 11 is drawn by the pump body 3, and the reagent enters the interior of the spray assembly 4 through the conduit 32. Finally, it is sprayed out through the nozzle 42 at the bottom of the annular pipe 41. The sprayed reagent comes into contact with the air and absorbs sulfur dioxide in the air.

[0025] like Figure 2 and 3As shown, the gas scrubbing assembly 5 includes a liquid storage tank 51. One end of the air inlet pipe 2 is fixedly connected to the bottom end of the side wall of the liquid storage tank 51. A partition 52 is fixedly connected to the bottom of the liquid storage tank 51. The surface of the partition 52 is provided with evenly distributed through holes 53. A drain pipe 54 is fixedly connected to the bottom end of the side wall of the liquid storage tank 51. The drain pipe 54 passes through the tower body 11. An equally spaced support frame 55 is fixedly connected to the bottom end of the liquid storage tank 51. One side of the support frame 55 is fixedly connected to the inner wall of the tower body 11. An equally spaced connecting rod 61 is fixedly connected to the side wall of the conical cap 6. One end of the connecting rod 61 is fixedly connected to the side wall of the first diameter reduction section 12.

[0026] According to the above structure, when the exhaust gas first enters the interior of the recovery tower 1, it first enters the interior of the storage tank 51 through the air inlet pipe 2, and then flows upward through the through holes 53 on the surface of the baffle 52. The interior of the storage tank 51 is filled with liquids such as water, and the particulate pollutants in the exhaust gas will remain in the solution inside the storage tank 51, thereby preventing the particulate matter from falling into the reagent inside the tower body 11 in the subsequent process. The conical cap 6 can prevent the liquid that absorbs sulfur dioxide from falling into the interior of the storage tank 51.

[0027] The working principle of this utility model is as follows: During use, the interior of the tower body 11 is filled with a reagent for absorbing sulfur dioxide. When the reagent is saturated with sulfur dioxide, it is discharged through the liquid outlet pipe 16, and then sulfur is recovered from the reagent. When the waste gas initially enters the interior of the recovery tower 1, it first enters the interior of the storage tank 51 through the air inlet pipe 2, and then flows upward through the through holes 53 on the surface of the partition plate 52. The interior of the storage tank 51 is filled with liquids such as water. The particulate pollutants in the waste gas will remain in the solution inside the storage tank 51, thereby preventing the particulate matter from falling into the reagent inside the tower body 11 in the subsequent process. The conical cap 6 can prevent the liquid that absorbs sulfur dioxide from falling into the interior of the storage tank 51. The reagent inside the tower body 11 is drawn out by the pump body 3. The reagent enters the interior of the spray assembly 4 through the conduit 32, and finally is sprayed out through the nozzle 42 at the bottom of the annular pipe 41. The sprayed reagent comes into contact with the air and absorbs sulfur dioxide in the air.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A carton production waste recovery apparatus comprising a recovery tower (1) and a pump body (3), characterized in that: One side of the recovery tower (1) is provided with an air inlet pipe (2), the liquid inlet end of the pump body (3) is fixedly connected with a liquid inlet pipe (31), one end of the liquid inlet pipe (31) is fixedly connected with the bottom of the recovery tower (1), the liquid outlet end of the pump body (3) is fixedly connected with a conduit (32), the top of the recovery tower (1) is provided with a spray assembly (4), one end of the conduit (32) is communicated with the spray assembly (4), the inside of the recovery tower (1) is provided with a gas washing assembly (5), one end of the air inlet pipe (2) is communicated with the bottom of the gas washing assembly (5), the inside of the recovery tower (1) is fixedly connected with a conical cap (6), the conical cap (6) is arranged between the spray assembly (4) and the gas washing assembly (5).

2. A paper box production waste gas recovery device according to claim 1, characterized in that: The recovery tower (1) comprises a tower body (11) and a first reduced diameter portion (12), the first reduced diameter portion (12) is fixedly connected to the top end of the tower body (11), the top end of the first reduced diameter portion (12) is fixedly connected with a straight cylinder portion (13), the top end of the straight cylinder portion (13) is fixedly connected with a second reduced diameter portion (14), the top end of the second reduced diameter portion (14) is fixedly connected with an air outlet pipe (15).

3. A paper box production waste gas recovery device according to claim 2, characterized in that: The bottom end of the sidewall of the tower body (11) is fixedly communicated with a liquid outlet pipe (16).

4. A paper box production waste gas recovery device according to claim 3, characterized in that: The spray assembly (4) comprises an annular pipe (41) fixedly connected inside the straight cylinder portion (13), the bottom end of the annular pipe (41) is fixedly communicated with uniformly distributed spray heads (42), one end of the conduit (32) is fixedly communicated with the sidewall of the annular pipe (41).

5. A paper box production waste gas recovery device according to claim 4, characterized in that: The gas washing assembly (5) comprises a liquid storage tank (51), one end of the air inlet pipe (2) is fixedly communicated with the bottom end of the sidewall of the liquid storage tank (51), the bottom of the liquid storage tank (51) is fixedly connected with a partition plate (52), the surface of the partition plate (52) is provided with uniformly distributed through holes (53), the bottom end of the sidewall of the liquid storage tank (51) is fixedly communicated with a liquid discharge pipe (54), the liquid discharge pipe (54) penetrates the tower body (11).

6. A paper box production waste gas recovery device according to claim 5, characterized in that: The bottom end of the liquid storage tank (51) is fixedly connected with equidistantly distributed support frames (55), one side of the support frame (55) is fixedly connected to the inner wall of the tower body (11).

7. A paper box production waste gas recovery device according to claim 6, characterized in that: The sidewall of the conical cap (6) is fixedly connected with equidistantly distributed connecting rods (61), one end of the connecting rod (61) is fixedly connected to the sidewall of the first reduced diameter portion (12).

Images